Improvement in mold-board plows



BENJAMIN K. EMERSON, OF SEVILLE, OHIO.

IMPROVEMENT IN MOLU-BOARD PLWS.

Specification forming part of Letters Patent No. 194,961, dated September 11, 1877; application fi1e August 6, 1877.

T0 all whom 5t may concern:

Be it known that I, BENJAMIN K. EMER- SON, of Seville, in the county of Medina and State of Ohio, have invented a certain new and. Improved Plow and I de hereby declare that the foilowing is a full, ciear, and complete description thereof, reference being had to the accompanying drawings, making a part of the same.

Figures 1 and 2 are side views of the plow. Fig. 3 is a plan view. Fig. 4 is a front view.

Like letters of reference refer to like parts in the several views.

'lhe nature of this inventien relates to piows; and the essential matter of the invention eon sists in the construction of the mold-board, and the mode of attaching the same to the standard of the plow, so that the upper front portion of the board may have a projecting colter-like edge, and which shall be streng, and less liable 130 break than these in ordinary use.

For a more full understanding of the inven tien, reference will he had to the foilowing detai1ed description.

In this class of plows now in usethe upper portion of the dividing-edge is a eontinuation of the plowshare, said cortinuaticn being an arm or colter, projecting upward from the share along the front edge of the standard, in close proximity to the front edge of the meidboard. Said arm or colter is a part of the share, and is secured to the -p1ow only by the beits by which the share is attached to the standard. This arm, n0t being very firmly attached to the standard, is liable to break from the share, rendering the plow nseless nnless replaced by a new share and arm, which is a matter of 110 littie expense.

T0 avoid this injury to the plow, and consequent expense, is the purpose of this inventicn, and Which consists in makng the share without an arm 01 colter, as shown at A in the drawings. Said share is secured to the foot of the standard B by a bolt 0r beits, a, and forms about one-half of the height of the cutting or dividing edge 0 of the plow.

Above the share is secured. to the standard, by bolts I), the meld-board D, fitting closely to the edge of the share, as seen at 0, and conformirg t0 its facial 0r lifting curve, as will be seen in the drawings.

The front or dividing edge of the mold-board is secured to the projecting edge of the standard as follows: The edge of the standard is made an acute angle, as shown at E, Fig. 3, to which angle is fitted the dividng-edge of the mold-board, by forming on the inner side of the edge a corresponding angle, F.

It will be obvious that by this adaptation of the mold-board to the projecting edge of the standard the two parts will be held together in a dovetailed-like manner, so that the pressure of the earth, while being turned. by the mold-board, cannot spring its front 0r dividing edge away from its connection with the standard, and which cannot be removed therefrom Without first removing the bolts b.

It will be seen in the drawings that the dividing-edge of the meld-board is in admnce of the edge of the standard-that is to say, it projects beyond the standard so far as to reach to the dividing-edge of the share, and with which it conforms in curvature, forming themwith a continuous curve from the point G te H, and projecting forward of that part of the standard above the mold-board, and which said part recedes in a curve from the dividingedge; whereas that part of the standard embraeed by the mold-board projects forward, in order to carry the dividing-edge of the meidboard to the dividing-edge of the share, substantially as shown.

In forming the upper part of the dividingedge of the plow by means of the projecting edge of the meld-board, and attaching said board to the standard in the manner as above described, said upper dividing-edge is not liable to break, and at the same time is as practically efficient as though 'orming a part of the lower section or share of the plow.

What I claim as 1ny invention, and desire to sccure by Letters Patent, is

In plows, the mold-board D, hav ing its dividingedge extending forward of the standard B, in line with the edge of the point 01 share, and the inner side of the dividing-edge formed at an acute angle to fit the corresponding angle of the standard, f0r securing the two parts together, in combination with said standard, having its upper front edge, above the meld, curved or receding back, and its lower part embraced by the mold-board extending forward of said curve, substantially as and for the purpose set forth.

BENJAMIN K. EMERSON.

Witnesses W. H. BURRIDGE, M. 0. DOW. 

